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AI uses less water than the public thinks

californiawaterblog.com

31–40 of 425 posts

Re: AI uses less water than the public thinks

#31
> Jay Lund is an Emeritus Distinguished Professor of Civil and Environmental Engineering and Geography at the University of California – Davis. He is also a Vice Director of the Center for Watershed Sciences

And the main evidence he presents is a summary of a prompt he gave to LLM's? Be serious, please. This is challenging my suspension of disbelief a bit.

Re: AI uses less water than the public thinks

#32

If data center water use is such a concern, why not require that data centers invest in closed-loop cooling systems? By closed-loop, I'm talking about re-condensing evaporated water and allowing the water to cool. Cooling the water would be more expensive in hotter environments, but still achievable. These data centers seem to have wild amounts of money for investment, why not just mandate conservation requirements?

Data center water use is in fact not a valid concern.

Re: AI uses less water than the public thinks

#34
post #3

This is a bit of a dead horse, but the magnitude of how off the public is on this continues to amaze me. Pete Buttigieg did a Tulsa town hall a week or so ago where someone cited it taking "10,000 gallons of water just to generate one photo".[0] [0]: https://www.youtube.com/watch?v=MCc-ipWVShY&t=1h5m43s

That's populism for ya, and it's sadly extremely effective. Meanwhile, both China and India are giving free electricity, providing dollar-for-dollar capex subsidizes, and 25 year tax exemptions to build data centers [0][1]. Love how HN wants to strangle the infrastructure that underlies our entire industry and why HNers get paid. It really highlights how much of the opposition to AI comes from the "chattering classes…

Populism is effective because the proverbial rising tide is not lifting all boats. AI is currently driving yet another extreme wealth inequality inflection point. Founded just five years ago, Anthropic is going to be a trillion dollar private company maybe this year! This is a staggering outcome and will further divide the gap between the wealthy and everyone else.

So whether populist outrage is expressed through fears of job losses, higher energy prices or concerns over water usage, IMHO, wealth inequality is the cause.

Re: AI uses less water than the public thinks

#35
post #29

Look over here! Not over there at grid infrastructure and generating capacity, or noise and pollution from on-site generators. The scale of electricity use in data centers is much more likely to cause disruption and the shifting of costs onto residential customers to pay for a new infrastructure and generating capacity.

wouldn't it be great if we hadn't actively sabotaged grid capacity and development at every turn

Re: AI uses less water than the public thinks

#37

A lot of confusion around AI water usage might stem from whether it's an open-loop or a closed-loop cooling system. e.g. an open-loop system which disposes of waste heat through evaporation is naturally going to draw a lot more water than a closed-loop system which recycles the water. Open-loop is likely cheaper to build, and importantly, it _does_ use up a lot of water that could otherwise be going to a municipality…

Most of the confusion just stems from anti-DC advocates lying about water usage, not any specific technical details.

Re: AI uses less water than the public thinks

#38
I don’t really get the water concerns in datacenter cooling. Even if a lot of water was used for cooling with every prompt (which he argues against here, but, even if)… water “used up” by cooling just comes out a little hotter, right? Maybe evaporated. Then it’ll come back in the form of rain. This isn’t an industrial chemistry process that leaves some toxic waste in the water. Or an agricultural one that puts water in plants and then ships it off to some other region. It just becomes another path through the water cycle.

I actually don’t get how this can be a real thing that people are worried about. Is there some astroturfing behind this? Maybe an attempt to make environmentalists and AI skeptics look stupid?

Re: AI uses less water than the public thinks

#39

Earlier quoted context omitted.

That's populism for ya, and it's sadly extremely effective. Meanwhile, both China and India are giving free electricity, providing dollar-for-dollar capex subsidizes, and 25 year tax exemptions to build data centers [0][1]. Love how HN wants to strangle the infrastructure that underlies our entire industry and why HNers get paid. It really highlights how much of the opposition to AI comes from the "chattering classes…

Populism is effective because the proverbial rising tide is not lifting all boats. AI is currently driving yet another extreme wealth inequality inflection point. Founded just five years ago, Anthropic is going to be a trillion dollar private company maybe this year! This is a staggering outcome and will further divide the gap between the wealthy and everyone else. So whether populist outrage is expressed through fea…

The economy is down, and the fad is blame AI so that is what everyone is doing. The last downturn there was a different fad that people blamed it on - but the real root cause was always the economy and not the fad.
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